my salt was never low last year, i checked it this year and is still where it was. However the indicator on the pump is saying its low. because of that there is no chlorine being produced and my sparkly pool is fading again. I added 3 bags of salt and it is still going off. Everything has already been up and running 3 weeks no issues and for 4 days i get this error. i took it apart and cleaned it but still no good. any tips? sry for errors typing 1h with baby in the other